| 46 | |
| 47 | |
| 48 | bool ExtractUnixLink30(CommandData *Cmd,ComprDataIO &DataIO,Archive &Arc,const wchar *LinkName) |
| 49 | { |
| 50 | char Target[NM]; |
| 51 | if (IsLink(Arc.FileHead.FileAttr)) |
| 52 | { |
| 53 | size_t DataSize=(size_t)Arc.FileHead.PackSize; |
| 54 | if (DataSize>ASIZE(Target)-1) |
| 55 | return false; |
| 56 | if ((size_t)DataIO.UnpRead((byte *)Target,DataSize)!=DataSize) |
| 57 | return false; |
| 58 | Target[DataSize]=0; |
| 59 | |
| 60 | DataIO.UnpHash.Init(Arc.FileHead.FileHash.Type,1); |
| 61 | DataIO.UnpHash.Update(Target,strlen(Target)); |
| 62 | DataIO.UnpHash.Result(&Arc.FileHead.FileHash); |
| 63 | |
| 64 | // Return true in case of bad checksum, so link will be processed further |
| 65 | // and extraction routine will report the checksum error. |
| 66 | if (!DataIO.UnpHash.Cmp(&Arc.FileHead.FileHash,Arc.FileHead.UseHashKey ? Arc.FileHead.HashKey:NULL)) |
| 67 | return true; |
| 68 | |
| 69 | wchar TargetW[NM]; |
| 70 | CharToWide(Target,TargetW,ASIZE(TargetW)); |
| 71 | // Check for *TargetW==0 to catch CharToWide failure. |
| 72 | // Use Arc.FileHead.FileName instead of LinkName, since LinkName |
| 73 | // can include the destination path as a prefix, which can |
| 74 | // confuse IsRelativeSymlinkSafe algorithm. |
| 75 | if (!Cmd->AbsoluteLinks && (*TargetW==0 || IsFullPath(TargetW) || |
| 76 | !IsRelativeSymlinkSafe(Cmd,Arc.FileHead.FileName,LinkName,TargetW))) |
| 77 | return false; |
| 78 | return UnixSymlink(Target,LinkName,&Arc.FileHead.mtime,&Arc.FileHead.atime); |
| 79 | } |
| 80 | return false; |
| 81 | } |
| 82 | |
| 83 | |
| 84 | bool ExtractUnixLink50(CommandData *Cmd,const wchar *Name,FileHeader *hd) |
no test coverage detected